Scrape mixture into pan and bake until center is just set, 40 to 50 minutes. Cool 5 minutes in pan on rack. Carefully invert pan onto serving platter and release sides. Remove bottom of pan (now on top) and serve.

Tips from Epicurious:
· Masa harina de maiz, also called corn flour or instant corn masa mix for tamales, is corn that has been treated with lime and water then ground and dried. Maseca brand masa is available at www.mexgrocer.com. If you buy Quaker masa, the most common brand available in the U.S., be sure to buy the "Masa Harina de Maiz," not the "Harina Preparada Para Tortillas." Regular cornmeal cannot be substituted for masa.
· If you don't have a springform pan, you can cook the pudding in any sort of baking dish and spoon it out to serve. It can also be baked and served in ramekins for individual servings.